Improvement in gates



J. D. SHANNON.

Gate.

No. 222,956. Patented Dec. 23,1879.

WITNESS s 'INVENTOB, W ,JMp Kym. gv 6k 1 ATTORNEYS N-PETERS, PHOTOJJTHOGRAPHER, WASHINGTO D c UNITED STATES PATENT OFFICE.

JOHN D. SHANNON, OF PIQUA, OHIO.

lM PROVEM ENT IN GATES.

Specification forming part of Letters Patent No. 222,956, dated December 23, 1879; application filed November 1, 1879.

To all whom it may concern:

Be it known that I, JonN D. SHANNON, of Piqua, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Gates; andI do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is arepresentation of a perspective of my gate. Fig. 2 is a sideelevation View of the same, and Fig. 3 is a sectional detail view.

My present invention relates to gates in which the gate proper is hinged by the middle to a crane, which is in turn hinged to one of the posts, and mechanism employed for the purpose of causing the ends of the gate, in opening, to retreat almost in direct lines from the posts.

My improvement relates to means for causing the gate to automatically turn upon its hinged or pivotal center as the crane is swung open or in a reverse direction; also, to the manner of hinging the gate at its middle to the crane; also, to a guide and catch for the locking pin or bolt of the gate, all as fully set forth in the following description, and particularly pointed out in the claims.

Referring by letters to the drawings, A designatesthe gate, which is hinged to a crane, B,

and O O the two posts, to the former of which is hinged the crane B, and to the latter is secured a guide and catch, D, for the fastening bolt or pin 01 of the gate.

The manner of hinging the gate to the crane is as follows: To an upper rail of the gate is secured a plate, E, which carries a pintle, F,

and to a lower rail of the gate is fastened a plate, G, having the two ears or flanges g g,

, through which is passed a pintle, F.

The upper pintle is rigidly secured to the plate E, and extends to a suitable length both above and below the same, its lower end being adapted to have its pivotal bearing in a bar,

g of the lower plate, as aforesaid, and also through a plate, K, which is fastened to the bar H, and arranged to project between the said ears g. These hinges, it will be observed,

are located at the middle of the gate, and it will also be noticed that their construction prevents the gate from being raised by the smaller class of animals which may endeavor to force their way under the same.

The crane B is hinged at L L to the post G, and is provided with an arm, M, which in practice I propose connecting with hinged frames or other suitable devices arranged upon the ground, so that as the "eliicle approaches the gate and passes over the same the gate will be swung open, and also so that as the vehicle recedes from the gate it will be closed by the passage of the wheels over similar mechanism. As such means for opening and closing gates are in common use, l have not deemed it requisite to illustrate the N designates a circularshaped bracket, which projects from the post 0, and O a flexible band or chain, which extends from the sides of the bracket N to and around the wheel I, which is rigidly secured upon the upper end of pintle F.

The band or chain 0 is secured to the bracket and also the wheel, so that as the crane is swung round upon its hinges the gate will be automatically turned upon its hinges.

The flexible band or chain which is employed for the purpose of causing the above movement also subserves the purpose of an additional brace or means for preventing the gate from sagging, and it is obvious that in employing a cranehinged to the middle of the gate the sagging which is incident to gates hinged at the end is entirely avoided.

The guide and catch forthe fastening-bolt of the gate is constructed with the two inclined sides 01 d and an opening or recess, a

1. In combination with a gate hinged at its middle to a swinging crane, a band or chain passed from the hinge-post to and around a wheel or roller secured upon the gate, substantially as herein shown and set forth, and for the purposes specified.

2. In combination with the swinging crane B, the gate A, hinged at its middle thereto, and the hinges comprising the plates E K, pintles F F, and the plate Gr, with ears or flanges g 9, all constructed substantially as herein shown and described, and for the purposes set forth.

3. In combination with the gate hinged at its middle to a swinging" crane, and having a bolt or latch, d, the catch-piece D, formed with inclined sides and with a recess for the bolt or latch, and secured to the latch-post JOHN D. SHANNON.

Witnesses r T. S. MGLAIN, J AMES J. SHEEHY. 

